Free Clipboard History Manager.
The Ace Clipboard floats on top of your current work. Whenever you cut or copy, the clip appears in Ace. To paste back a clip, all you have to do is click on the one you want. The clips window only shows the first few words of each clip but when you move the mouse pointer over the window, a preview window appears showing the first several lines of a text clip or a thumbnail of a graphic clip. This makes choosing the clip you want to paste very easy.
Ace is also ...